[1]李德志,赵新明,何洪涛,等.GEMINI GXL16 PET-CT的验收与NEMA标准的应用[J].国际放射医学核医学杂志,2010,34(4):230-234.[doi:10.3760/cma.j.issn.1673-4114.2010.04.011]
　LI De-zhi,ZHAO Xin-ming,HE Hong-tao,et al.Acceptance tests and performance evaluation for GEMINI GXL16 PET-CT[J].International Journal of Radiation Medicine and Nuclear Medicine,2010,34(4):230-234.[doi:10.3760/cma.j.issn.1673-4114.2010.04.011]
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GEMINI GXL16 PET-CT的验收与NEMA标准的应用(/HTML)
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《国际放射医学核医学杂志》[ISSN:1673-4114/CN:12-1381/R]

卷:
34
期数:
2010年第4期
页码:
230-234
栏目:
核医学技术与方法
出版日期:
1900-01-01

文章信息/Info

Title:
Acceptance tests and performance evaluation for GEMINI GXL16 PET-CT
作者:
李德志1;  赵新明1;  何洪涛2;  孙如铁2;  陈盛祖3
1. 050011, 石家庄, 河北医科大学第四医院核医学科及PET-CT中心;
2. 100005, 北京, 飞利浦中国有限公司;
3. 100021, 北京, 中国医学科学院肿瘤医院核医学科
Author(s):
LI De-zhi1;  ZHAO Xin-ming1;  HE Hong-tao2;  SUN Ru-tie2;  CHEN Sheng-zu3
Department of Nuclear Medicine and PET-CT, The Fourth Hospital of Hebei Medical University,Shijiazhuang 050011, China
关键词:
正电子发射断层显像术; 体层摄影术; X线计算机; 质量控制
Keywords:
Positron-emission tomography; Tomography; X-ray computed; Quality control
DOI:
10.3760/cma.j.issn.1673-4114.2010.04.011
摘要:
目的 依照美国国家电气制造协会(NEMA)最新版NEMA NU 2-2001标准,对飞利浦公司生产的GEMINI GXL16 PET-CT仪进行验收和性能评估。方法 使用NEMA NU 2-2001标准的测试模型和测试方法,对PET的空间分辨率、能量分辨率、散射分数、计数丢失、灵敏度、PET与CT图像的融合精度等参数进行测试。结果 空间分辨率[(半高宽) mm]轴向为6.06(0cm)和6.44(10 cm),横向为4.65(1cm)和5.98(10 cm);散射分数为34.27%;能量分辨率为18%;中心(0 cm)和偏离中心10cm处的灵敏度分别为8312和8472(计数·s-1·MBq);等效噪声计数率为53.29×103计数/s;清楚分辨直径为10 mm的最小热球;PET与CT图像融合无偏离(模型)。结论 该PET-CT仪的PET部分被测试指标均达到出厂要求,通过验收。
Abstract:
Objective To evaluate the performance specification of PHILIPS GEMINI GXL16 PETCT through the acceptance tests. Methods Acceptance tests of GEMINI GXL16 PET-CT consist of PET performance measurements and the precise measurement of imaging fusion. The performance measurement of PET was based on NEMA standard (NU 2-2001 version). Results Spatial resolution(FWHM, mm) was 6.06/6.44 (axial, 2D/3D) and 4.65/5.98 (tansverse, 2D/3D). Scatter fraction (SF) was 34.27%. Energy resolution was 18%. Sensitivity (counts·s-1·MBq-1) was 8312/8472 (center/1 0cm). Noise equivalent count rate was 53.29 kcps. The phantom imaging can recognize small sphere with diameter 10 mm and the imaging fusion was precise. Conclusion The PET measurement results of the PET-CT met the requirement of manufacture’s standard, therefore acceptance test was approved.

参考文献/References:

[1] 李小华,贺小红,李凡勇,等.Discovery ST PET性能测试与NEMA标准的应用.中华核医学杂志,2006,26(2):104-106.
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备注/Memo

备注/Memo:
收稿日期:2010-01-19。
基金项目:河北省普通高等学校强势特色学科肿瘤学组资助(冀教高[2005]52)
通讯作者:赵新明,E-mail:xinm_zhao@yanoo.com.cn
更新日期/Last Update: 1900-01-01